High water content oil-external micellar dispersions

Patent · Tue Feb 24 00:00:00 EST 1970

OSTI ID:7301198

Jones, S C; Roszelle, W O; Svaldi, M A

A high water content oil-external micellar dispersion (containing 55 percent to about 90 percent water) was developed for enhanced oil recovery. The micellar slug contained petroleum sulfonate (molecular weight averaged at about 350 to about 525), hydrocarbon, water and cosurfactant. The micellar slug was driven by a mobility buffer slug, which consisted of No. 530 Pusher, fusel oil and the residue Palestine water (420 ppm TDS) from the Palestine water reservoir in Palestine, Illinois. Fired Berea sandstone cores (porosity near 20 percent) were saturated with water (18,000 ppm sodium chloride), flooded with sweet black crude oil from Henry lease in Illinois (7 cp at 72/sup 0/F), and waterflooded with water from Henry lease (18,000 ppm TDS). A maximum recovery of 11.5 percent of oil in place was recovered by 2 percent pore volume of a micellar dispersion containing petroleum sulfonate (MW 406), crude oil, 70 percent by volume distilled water, and p-hexanol.

• Assignee: Marathon Oil Co.
• Patent Number(s): US 3497006
• OSTI ID: 7301198
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
OIL WELLS
MICROEMULSION FLOODING
ENHANCED RECOVERY
MICELLAR SYSTEMS
PETROLEUM
PETROLEUM SULFONATES
SANDSTONES
SURFACTANTS
ENERGY SOURCES
ESTERS
FLUID INJECTION
FOSSIL FUELS
FUELS
MISCIBLE-PHASE DISPLACEMENT
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
ROCKS
SEDIMENTARY ROCKS
SULFONATES
SULFONIC ACID ESTERS
WELLS
020300* - Petroleum- Drilling & Production